chillijam.co.uk » .NET http://chillijam.co.uk Thu, 28 Jan 2021 10:32:11 +0000 en-US hourly 1 https://wordpress.org/?v=4.0.38 Multiple Async calls to a web service http://chillijam.co.uk/2008/05/21/multiple-async-calls-to-a-web-service/ http://chillijam.co.uk/2008/05/21/multiple-async-calls-to-a-web-service/#comments Wed, 21 May 2008 09:53:27 +0000 http://chillijam.co.uk/?p=17 Continue reading Multiple Async calls to a web service →]]> I’m currently working on a project that requires making several concurrent asynchronous calls to a web service.  Now, the service work fine synchrounously, but change the pattern slightly and I was getting the following error.

“There was an error during asynchronous processing. Unique state object is required for multiple asynchronous simultaneous operations to be outstanding.”

The solution, courtesy of a post on the MSDN forums was to pass a new GUID as a state object.

Problem solved.

 

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